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Finding the Fourth Proportional to 346,775.20, 520,162.80 and 180,541.60

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Solution

The fourth proportional to 346,775.20, 520,162.80 and 180,541.60 is: 270,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,775.20 : 520,162.80 = 180,541.60 : x
  2. Step 2: Convert to fraction form
    346,775.20/520,162.80 = 180,541.60/x
  3. Step 3: Cross multiply
    346,775.20x = 520,162.80 × 180,541.60
  4. Step 4: Simplify right side
    346,775.20x = 93,911,024,172.48
  5. Step 5: Solve for x
    x = 93,911,024,172.48/346,775.20
  6. Step 6: Final answer
    x = 270,812.40

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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.