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Finding the Fourth Proportional to 208,134.36, 287,225.36 and 112,641.04

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Solution

The fourth proportional to 208,134.36, 287,225.36 and 112,641.04 is: 155,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,134.36 : 287,225.36 = 112,641.04 : x
  2. Step 2: Convert to fraction form
    208,134.36/287,225.36 = 112,641.04/x
  3. Step 3: Cross multiply
    208,134.36x = 287,225.36 × 112,641.04
  4. Step 4: Simplify right side
    208,134.36x = 32,353,363,264.77
  5. Step 5: Solve for x
    x = 32,353,363,264.77/208,134.36
  6. Step 6: Final answer
    x = 155,444.60

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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.