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Finding the Fourth Proportional to 345,833.34, 518,803.68 and 146,154.60

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Solution

The fourth proportional to 345,833.34, 518,803.68 and 146,154.60 is: 219,254.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,833.34 : 518,803.68 = 146,154.60 : x
  2. Step 2: Convert to fraction form
    345,833.34/518,803.68 = 146,154.60/x
  3. Step 3: Cross multiply
    345,833.34x = 518,803.68 × 146,154.60
  4. Step 4: Simplify right side
    345,833.34x = 75,825,544,328.93
  5. Step 5: Solve for x
    x = 75,825,544,328.93/345,833.34
  6. Step 6: Final answer
    x = 219,254.58

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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.