Home / 208,376.43-287,560.79-112,883.05

Finding the Fourth Proportional to 208,376.43, 287,560.79 and 112,883.05

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Solution

The fourth proportional to 208,376.43, 287,560.79 and 112,883.05 is: 155,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,376.43 : 287,560.79 = 112,883.05 : x
  2. Step 2: Convert to fraction form
    208,376.43/287,560.79 = 112,883.05/x
  3. Step 3: Cross multiply
    208,376.43x = 287,560.79 × 112,883.05
  4. Step 4: Simplify right side
    208,376.43x = 32,460,739,035.61
  5. Step 5: Solve for x
    x = 32,460,739,035.61/208,376.43
  6. Step 6: Final answer
    x = 155,779.32

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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.