Home / 208,211.04-287,331.89-112,717.51

Finding the Fourth Proportional to 208,211.04, 287,331.89 and 112,717.51

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Solution

The fourth proportional to 208,211.04, 287,331.89 and 112,717.51 is: 155,550.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,211.04 : 287,331.89 = 112,717.51 : x
  2. Step 2: Convert to fraction form
    208,211.04/287,331.89 = 112,717.51/x
  3. Step 3: Cross multiply
    208,211.04x = 287,331.89 × 112,717.51
  4. Step 4: Simplify right side
    208,211.04x = 32,387,335,184.39
  5. Step 5: Solve for x
    x = 32,387,335,184.39/208,211.04
  6. Step 6: Final answer
    x = 155,550.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.