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Finding the Fourth Proportional to 345,959.20, 520,105.20 and 294,637.60

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Solution

The fourth proportional to 345,959.20, 520,105.20 and 294,637.60 is: 442,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,959.20 : 520,105.20 = 294,637.60 : x
  2. Step 2: Convert to fraction form
    345,959.20/520,105.20 = 294,637.60/x
  3. Step 3: Cross multiply
    345,959.20x = 520,105.20 × 294,637.60
  4. Step 4: Simplify right side
    345,959.20x = 153,242,547,875.52
  5. Step 5: Solve for x
    x = 153,242,547,875.52/345,959.20
  6. Step 6: Final answer
    x = 442,949.77

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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.