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Finding the Fourth Proportional to 439,952.48, 607,130.88 and 238,748.48

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Solution

The fourth proportional to 439,952.48, 607,130.88 and 238,748.48 is: 329,470.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,952.48 : 607,130.88 = 238,748.48 : x
  2. Step 2: Convert to fraction form
    439,952.48/607,130.88 = 238,748.48/x
  3. Step 3: Cross multiply
    439,952.48x = 607,130.88 × 238,748.48
  4. Step 4: Simplify right side
    439,952.48x = 144,951,574,761.06
  5. Step 5: Solve for x
    x = 144,951,574,761.06/439,952.48
  6. Step 6: Final answer
    x = 329,470.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.