Home / 289,217.84-433,915.35-129,428.24

Finding the Fourth Proportional to 289,217.84, 433,915.35 and 129,428.24

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Solution

The fourth proportional to 289,217.84, 433,915.35 and 129,428.24 is: 194,182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,217.84 : 433,915.35 = 129,428.24 : x
  2. Step 2: Convert to fraction form
    289,217.84/433,915.35 = 129,428.24/x
  3. Step 3: Cross multiply
    289,217.84x = 433,915.35 × 129,428.24
  4. Step 4: Simplify right side
    289,217.84x = 56,160,897,242.77
  5. Step 5: Solve for x
    x = 56,160,897,242.77/289,217.84
  6. Step 6: Final answer
    x = 194,182.00

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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.