Home / 289,280.05-434,034.29-89,616.01

Finding the Fourth Proportional to 289,280.05, 434,034.29 and 89,616.01

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Solution

The fourth proportional to 289,280.05, 434,034.29 and 89,616.01 is: 134,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,280.05 : 434,034.29 = 89,616.01 : x
  2. Step 2: Convert to fraction form
    289,280.05/434,034.29 = 89,616.01/x
  3. Step 3: Cross multiply
    289,280.05x = 434,034.29 × 89,616.01
  4. Step 4: Simplify right side
    289,280.05x = 38,896,421,272.98
  5. Step 5: Solve for x
    x = 38,896,421,272.98/289,280.05
  6. Step 6: Final answer
    x = 134,459.40

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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.