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Finding the Fourth Proportional to 353,030.02, 529,924.20 and 142,805.86

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Solution

The fourth proportional to 353,030.02, 529,924.20 and 142,805.86 is: 214,362.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,030.02 : 529,924.20 = 142,805.86 : x
  2. Step 2: Convert to fraction form
    353,030.02/529,924.20 = 142,805.86/x
  3. Step 3: Cross multiply
    353,030.02x = 529,924.20 × 142,805.86
  4. Step 4: Simplify right side
    353,030.02x = 75,676,281,115.81
  5. Step 5: Solve for x
    x = 75,676,281,115.81/353,030.02
  6. Step 6: Final answer
    x = 214,362.17

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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.