Home / 438,421.30-657,631.95-202,225.30

Finding the Fourth Proportional to 438,421.30, 657,631.95 and 202,225.30

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Solution

The fourth proportional to 438,421.30, 657,631.95 and 202,225.30 is: 303,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,421.30 : 657,631.95 = 202,225.30 : x
  2. Step 2: Convert to fraction form
    438,421.30/657,631.95 = 202,225.30/x
  3. Step 3: Cross multiply
    438,421.30x = 657,631.95 × 202,225.30
  4. Step 4: Simplify right side
    438,421.30x = 132,989,818,378.34
  5. Step 5: Solve for x
    x = 132,989,818,378.34/438,421.30
  6. Step 6: Final answer
    x = 303,337.95

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.