Home / 438,204.05-657,343.71-153,870.16

Finding the Fourth Proportional to 438,204.05, 657,343.71 and 153,870.16

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Solution

The fourth proportional to 438,204.05, 657,343.71 and 153,870.16 is: 230,818.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,204.05 : 657,343.71 = 153,870.16 : x
  2. Step 2: Convert to fraction form
    438,204.05/657,343.71 = 153,870.16/x
  3. Step 3: Cross multiply
    438,204.05x = 657,343.71 × 153,870.16
  4. Step 4: Simplify right side
    438,204.05x = 101,145,581,832.69
  5. Step 5: Solve for x
    x = 101,145,581,832.69/438,204.05
  6. Step 6: Final answer
    x = 230,818.46

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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.