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Finding the Fourth Proportional to 289,000.90, 432,886.95 and 189,468.10

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Solution

The fourth proportional to 289,000.90, 432,886.95 and 189,468.10 is: 283,799.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,000.90 : 432,886.95 = 189,468.10 : x
  2. Step 2: Convert to fraction form
    289,000.90/432,886.95 = 189,468.10/x
  3. Step 3: Cross multiply
    289,000.90x = 432,886.95 × 189,468.10
  4. Step 4: Simplify right side
    289,000.90x = 82,018,267,931.30
  5. Step 5: Solve for x
    x = 82,018,267,931.30/289,000.90
  6. Step 6: Final answer
    x = 283,799.35

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1.5x scale

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.