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Finding the Fourth Proportional to 243,319.32, 362,729.84 and 239,484.78

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Solution

The fourth proportional to 243,319.32, 362,729.84 and 239,484.78 is: 357,013.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,319.32 : 362,729.84 = 239,484.78 : x
  2. Step 2: Convert to fraction form
    243,319.32/362,729.84 = 239,484.78/x
  3. Step 3: Cross multiply
    243,319.32x = 362,729.84 × 239,484.78
  4. Step 4: Simplify right side
    243,319.32x = 86,868,275,931.84
  5. Step 5: Solve for x
    x = 86,868,275,931.84/243,319.32
  6. Step 6: Final answer
    x = 357,013.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.