Home / 429,970.12-645,236.14-163,733.24

Finding the Fourth Proportional to 429,970.12, 645,236.14 and 163,733.24

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Solution

The fourth proportional to 429,970.12, 645,236.14 and 163,733.24 is: 245,706.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,970.12 : 645,236.14 = 163,733.24 : x
  2. Step 2: Convert to fraction form
    429,970.12/645,236.14 = 163,733.24/x
  3. Step 3: Cross multiply
    429,970.12x = 645,236.14 × 163,733.24
  4. Step 4: Simplify right side
    429,970.12x = 105,646,603,767.29
  5. Step 5: Solve for x
    x = 105,646,603,767.29/429,970.12
  6. Step 6: Final answer
    x = 245,706.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.