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Finding the Fourth Proportional to 288,240.38, 432,622.94 and 153,417.64

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Solution

The fourth proportional to 288,240.38, 432,622.94 and 153,417.64 is: 230,266.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,240.38 : 432,622.94 = 153,417.64 : x
  2. Step 2: Convert to fraction form
    288,240.38/432,622.94 = 153,417.64/x
  3. Step 3: Cross multiply
    288,240.38x = 432,622.94 × 153,417.64
  4. Step 4: Simplify right side
    288,240.38x = 66,371,987,534.46
  5. Step 5: Solve for x
    x = 66,371,987,534.46/288,240.38
  6. Step 6: Final answer
    x = 230,266.10

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1.5x scale

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.