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Finding the Fourth Proportional to 291,710.70, 437,533.65 and 239,028.30

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Solution

The fourth proportional to 291,710.70, 437,533.65 and 239,028.30 is: 358,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,710.70 : 437,533.65 = 239,028.30 : x
  2. Step 2: Convert to fraction form
    291,710.70/437,533.65 = 239,028.30/x
  3. Step 3: Cross multiply
    291,710.70x = 437,533.65 × 239,028.30
  4. Step 4: Simplify right side
    291,710.70x = 104,582,924,552.30
  5. Step 5: Solve for x
    x = 104,582,924,552.30/291,710.70
  6. Step 6: Final answer
    x = 358,515.90

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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.