Home / 208,312.40-287,467.70-112,818.26

Finding the Fourth Proportional to 208,312.40, 287,467.70 and 112,818.26

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Solution

The fourth proportional to 208,312.40, 287,467.70 and 112,818.26 is: 155,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,312.40 : 287,467.70 = 112,818.26 : x
  2. Step 2: Convert to fraction form
    208,312.40/287,467.70 = 112,818.26/x
  3. Step 3: Cross multiply
    208,312.40x = 287,467.70 × 112,818.26
  4. Step 4: Simplify right side
    208,312.40x = 32,431,605,720.20
  5. Step 5: Solve for x
    x = 32,431,605,720.20/208,312.40
  6. Step 6: Final answer
    x = 155,687.35

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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.