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Finding the Fourth Proportional to 210,887.01, 316,334.18 and 77,698.71

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Solution

The fourth proportional to 210,887.01, 316,334.18 and 77,698.71 is: 116,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,887.01 : 316,334.18 = 77,698.71 : x
  2. Step 2: Convert to fraction form
    210,887.01/316,334.18 = 77,698.71/x
  3. Step 3: Cross multiply
    210,887.01x = 316,334.18 × 77,698.71
  4. Step 4: Simplify right side
    210,887.01x = 24,578,757,714.91
  5. Step 5: Solve for x
    x = 24,578,757,714.91/210,887.01
  6. Step 6: Final answer
    x = 116,549.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.