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Finding the Fourth Proportional to 245,125.80, 367,688.70 and 156,114.90

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Solution

The fourth proportional to 245,125.80, 367,688.70 and 156,114.90 is: 234,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,125.80 : 367,688.70 = 156,114.90 : x
  2. Step 2: Convert to fraction form
    245,125.80/367,688.70 = 156,114.90/x
  3. Step 3: Cross multiply
    245,125.80x = 367,688.70 × 156,114.90
  4. Step 4: Simplify right side
    245,125.80x = 57,401,684,631.63
  5. Step 5: Solve for x
    x = 57,401,684,631.63/245,125.80
  6. Step 6: Final answer
    x = 234,172.35

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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.