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Finding the Fourth Proportional to 288,088.40, 432,132.60 and 238,224.80

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Solution

The fourth proportional to 288,088.40, 432,132.60 and 238,224.80 is: 357,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,088.40 : 432,132.60 = 238,224.80 : x
  2. Step 2: Convert to fraction form
    288,088.40/432,132.60 = 238,224.80/x
  3. Step 3: Cross multiply
    288,088.40x = 432,132.60 × 238,224.80
  4. Step 4: Simplify right side
    288,088.40x = 102,944,702,208.48
  5. Step 5: Solve for x
    x = 102,944,702,208.48/288,088.40
  6. Step 6: Final answer
    x = 357,337.20

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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.