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Finding the Fourth Proportional to 284,264.01, 392,267.43 and 155,176.74

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Solution

The fourth proportional to 284,264.01, 392,267.43 and 155,176.74 is: 214,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,264.01 : 392,267.43 = 155,176.74 : x
  2. Step 2: Convert to fraction form
    284,264.01/392,267.43 = 155,176.74/x
  3. Step 3: Cross multiply
    284,264.01x = 392,267.43 × 155,176.74
  4. Step 4: Simplify right side
    284,264.01x = 60,870,780,995.58
  5. Step 5: Solve for x
    x = 60,870,780,995.58/284,264.01
  6. Step 6: Final answer
    x = 214,134.67

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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.