Home / 289,931.43-435,022.29-156,905.55

Finding the Fourth Proportional to 289,931.43, 435,022.29 and 156,905.55

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Solution

The fourth proportional to 289,931.43, 435,022.29 and 156,905.55 is: 235,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,931.43 : 435,022.29 = 156,905.55 : x
  2. Step 2: Convert to fraction form
    289,931.43/435,022.29 = 156,905.55/x
  3. Step 3: Cross multiply
    289,931.43x = 435,022.29 × 156,905.55
  4. Step 4: Simplify right side
    289,931.43x = 68,257,411,674.71
  5. Step 5: Solve for x
    x = 68,257,411,674.71/289,931.43
  6. Step 6: Final answer
    x = 235,426.05

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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.