Home / 222,538.19-307,085.78-127,031.90

Finding the Fourth Proportional to 222,538.19, 307,085.78 and 127,031.90

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Solution

The fourth proportional to 222,538.19, 307,085.78 and 127,031.90 is: 175,294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,538.19 : 307,085.78 = 127,031.90 : x
  2. Step 2: Convert to fraction form
    222,538.19/307,085.78 = 127,031.90/x
  3. Step 3: Cross multiply
    222,538.19x = 307,085.78 × 127,031.90
  4. Step 4: Simplify right side
    222,538.19x = 39,009,688,878.53
  5. Step 5: Solve for x
    x = 39,009,688,878.53/222,538.19
  6. Step 6: Final answer
    x = 175,294.36

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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.