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Finding the Fourth Proportional to 285,659.52, 393,312.67 and 242,549.16

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Solution

The fourth proportional to 285,659.52, 393,312.67 and 242,549.16 is: 333,955.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,659.52 : 393,312.67 = 242,549.16 : x
  2. Step 2: Convert to fraction form
    285,659.52/393,312.67 = 242,549.16/x
  3. Step 3: Cross multiply
    285,659.52x = 393,312.67 × 242,549.16
  4. Step 4: Simplify right side
    285,659.52x = 95,397,657,725.86
  5. Step 5: Solve for x
    x = 95,397,657,725.86/285,659.52
  6. Step 6: Final answer
    x = 333,955.81

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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.