Home / 311,139.52-429,426.16-180,298.84

Finding the Fourth Proportional to 311,139.52, 429,426.16 and 180,298.84

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Solution

The fourth proportional to 311,139.52, 429,426.16 and 180,298.84 is: 248,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,139.52 : 429,426.16 = 180,298.84 : x
  2. Step 2: Convert to fraction form
    311,139.52/429,426.16 = 180,298.84/x
  3. Step 3: Cross multiply
    311,139.52x = 429,426.16 × 180,298.84
  4. Step 4: Simplify right side
    311,139.52x = 77,425,038,513.65
  5. Step 5: Solve for x
    x = 77,425,038,513.65/311,139.52
  6. Step 6: Final answer
    x = 248,843.47

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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.