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Finding the Fourth Proportional to 210,888.02, 316,335.68 and 77,699.72

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Solution

The fourth proportional to 210,888.02, 316,335.68 and 77,699.72 is: 116,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,888.02 : 316,335.68 = 77,699.72 : x
  2. Step 2: Convert to fraction form
    210,888.02/316,335.68 = 77,699.72/x
  3. Step 3: Cross multiply
    210,888.02x = 316,335.68 × 77,699.72
  4. Step 4: Simplify right side
    210,888.02x = 24,579,193,762.01
  5. Step 5: Solve for x
    x = 24,579,193,762.01/210,888.02
  6. Step 6: Final answer
    x = 116,550.92

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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.