Home / 429,146.81-643,742.08-144,847.74

Finding the Fourth Proportional to 429,146.81, 643,742.08 and 144,847.74

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Solution

The fourth proportional to 429,146.81, 643,742.08 and 144,847.74 is: 217,279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,146.81 : 643,742.08 = 144,847.74 : x
  2. Step 2: Convert to fraction form
    429,146.81/643,742.08 = 144,847.74/x
  3. Step 3: Cross multiply
    429,146.81x = 643,742.08 × 144,847.74
  4. Step 4: Simplify right side
    429,146.81x = 93,244,588,297.58
  5. Step 5: Solve for x
    x = 93,244,588,297.58/429,146.81
  6. Step 6: Final answer
    x = 217,279.00

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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.