Home / 289,484.48-434,254.24-89,807.04

Finding the Fourth Proportional to 289,484.48, 434,254.24 and 89,807.04

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Solution

The fourth proportional to 289,484.48, 434,254.24 and 89,807.04 is: 134,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,484.48 : 434,254.24 = 89,807.04 : x
  2. Step 2: Convert to fraction form
    289,484.48/434,254.24 = 89,807.04/x
  3. Step 3: Cross multiply
    289,484.48x = 434,254.24 × 89,807.04
  4. Step 4: Simplify right side
    289,484.48x = 38,999,087,901.85
  5. Step 5: Solve for x
    x = 38,999,087,901.85/289,484.48
  6. Step 6: Final answer
    x = 134,719.10

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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.