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Finding the Fourth Proportional to 311,525.17, 429,904.18 and 168,284.77

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Solution

The fourth proportional to 311,525.17, 429,904.18 and 168,284.77 is: 232,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,525.17 : 429,904.18 = 168,284.77 : x
  2. Step 2: Convert to fraction form
    311,525.17/429,904.18 = 168,284.77/x
  3. Step 3: Cross multiply
    311,525.17x = 429,904.18 × 168,284.77
  4. Step 4: Simplify right side
    311,525.17x = 72,346,326,053.34
  5. Step 5: Solve for x
    x = 72,346,326,053.34/311,525.17
  6. Step 6: Final answer
    x = 232,232.68

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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.