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Finding the Fourth Proportional to 657,341.49, 986,159.93 and 208,089.30

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Solution

The fourth proportional to 657,341.49, 986,159.93 and 208,089.30 is: 312,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,341.49 : 986,159.93 = 208,089.30 : x
  2. Step 2: Convert to fraction form
    657,341.49/986,159.93 = 208,089.30/x
  3. Step 3: Cross multiply
    657,341.49x = 986,159.93 × 208,089.30
  4. Step 4: Simplify right side
    657,341.49x = 205,209,328,481.30
  5. Step 5: Solve for x
    x = 205,209,328,481.30/657,341.49
  6. Step 6: Final answer
    x = 312,180.70

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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.