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Finding the Fourth Proportional to 284,518.84, 392,630.88 and 157,203.04

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Solution

The fourth proportional to 284,518.84, 392,630.88 and 157,203.04 is: 216,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,518.84 : 392,630.88 = 157,203.04 : x
  2. Step 2: Convert to fraction form
    284,518.84/392,630.88 = 157,203.04/x
  3. Step 3: Cross multiply
    284,518.84x = 392,630.88 × 157,203.04
  4. Step 4: Simplify right side
    284,518.84x = 61,722,767,933.88
  5. Step 5: Solve for x
    x = 61,722,767,933.88/284,518.84
  6. Step 6: Final answer
    x = 216,937.37

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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.