Home / 218,509.13-301,551.02-126,631.57

Finding the Fourth Proportional to 218,509.13, 301,551.02 and 126,631.57

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Solution

The fourth proportional to 218,509.13, 301,551.02 and 126,631.57 is: 174,756.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,509.13 : 301,551.02 = 126,631.57 : x
  2. Step 2: Convert to fraction form
    218,509.13/301,551.02 = 126,631.57/x
  3. Step 3: Cross multiply
    218,509.13x = 301,551.02 × 126,631.57
  4. Step 4: Simplify right side
    218,509.13x = 38,185,877,710.67
  5. Step 5: Solve for x
    x = 38,185,877,710.67/218,509.13
  6. Step 6: Final answer
    x = 174,756.44

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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.