Home / 253,280.17-349,529.40-138,556.35

Finding the Fourth Proportional to 253,280.17, 349,529.40 and 138,556.35

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Solution

The fourth proportional to 253,280.17, 349,529.40 and 138,556.35 is: 191,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,280.17 : 349,529.40 = 138,556.35 : x
  2. Step 2: Convert to fraction form
    253,280.17/349,529.40 = 138,556.35/x
  3. Step 3: Cross multiply
    253,280.17x = 349,529.40 × 138,556.35
  4. Step 4: Simplify right side
    253,280.17x = 48,429,517,148.82
  5. Step 5: Solve for x
    x = 48,429,517,148.82/253,280.17
  6. Step 6: Final answer
    x = 191,209.27

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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.