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Finding the Fourth Proportional to 608,062.77, 912,115.82 and 208,700.78

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Solution

The fourth proportional to 608,062.77, 912,115.82 and 208,700.78 is: 313,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,062.77 : 912,115.82 = 208,700.78 : x
  2. Step 2: Convert to fraction form
    608,062.77/912,115.82 = 208,700.78/x
  3. Step 3: Cross multiply
    608,062.77x = 912,115.82 × 208,700.78
  4. Step 4: Simplify right side
    608,062.77x = 190,359,279,045.51
  5. Step 5: Solve for x
    x = 190,359,279,045.51/608,062.77
  6. Step 6: Final answer
    x = 313,058.60

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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.