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Finding the Fourth Proportional to 311,282.70, 429,552.51 and 183,970.14

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Solution

The fourth proportional to 311,282.70, 429,552.51 and 183,970.14 is: 253,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,282.70 : 429,552.51 = 183,970.14 : x
  2. Step 2: Convert to fraction form
    311,282.70/429,552.51 = 183,970.14/x
  3. Step 3: Cross multiply
    311,282.70x = 429,552.51 × 183,970.14
  4. Step 4: Simplify right side
    311,282.70x = 79,024,835,402.05
  5. Step 5: Solve for x
    x = 79,024,835,402.05/311,282.70
  6. Step 6: Final answer
    x = 253,868.38

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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.