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Finding the Fourth Proportional to 253,338.88, 349,594.88 and 138,615.04

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Solution

The fourth proportional to 253,338.88, 349,594.88 and 138,615.04 is: 191,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,338.88 : 349,594.88 = 138,615.04 : x
  2. Step 2: Convert to fraction form
    253,338.88/349,594.88 = 138,615.04/x
  3. Step 3: Cross multiply
    253,338.88x = 349,594.88 × 138,615.04
  4. Step 4: Simplify right side
    253,338.88x = 48,459,108,275.00
  5. Step 5: Solve for x
    x = 48,459,108,275.00/253,338.88
  6. Step 6: Final answer
    x = 191,281.77

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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.