Home / 353,289.60-529,588.80-142,646.40

Finding the Fourth Proportional to 353,289.60, 529,588.80 and 142,646.40

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Solution

The fourth proportional to 353,289.60, 529,588.80 and 142,646.40 is: 213,830.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,289.60 : 529,588.80 = 142,646.40 : x
  2. Step 2: Convert to fraction form
    353,289.60/529,588.80 = 142,646.40/x
  3. Step 3: Cross multiply
    353,289.60x = 529,588.80 × 142,646.40
  4. Step 4: Simplify right side
    353,289.60x = 75,543,935,800.32
  5. Step 5: Solve for x
    x = 75,543,935,800.32/353,289.60
  6. Step 6: Final answer
    x = 213,830.06

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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.