Home / 657,340.89-986,159.02-208,088.72

Finding the Fourth Proportional to 657,340.89, 986,159.02 and 208,088.72

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Solution

The fourth proportional to 657,340.89, 986,159.02 and 208,088.72 is: 312,179.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,340.89 : 986,159.02 = 208,088.72 : x
  2. Step 2: Convert to fraction form
    657,340.89/986,159.02 = 208,088.72/x
  3. Step 3: Cross multiply
    657,340.89x = 986,159.02 × 208,088.72
  4. Step 4: Simplify right side
    657,340.89x = 205,208,568,188.25
  5. Step 5: Solve for x
    x = 205,208,568,188.25/657,340.89
  6. Step 6: Final answer
    x = 312,179.83

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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.