Home / 346,730.60-520,095.90-213,177.80

Finding the Fourth Proportional to 346,730.60, 520,095.90 and 213,177.80

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Solution

The fourth proportional to 346,730.60, 520,095.90 and 213,177.80 is: 319,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,730.60 : 520,095.90 = 213,177.80 : x
  2. Step 2: Convert to fraction form
    346,730.60/520,095.90 = 213,177.80/x
  3. Step 3: Cross multiply
    346,730.60x = 520,095.90 × 213,177.80
  4. Step 4: Simplify right side
    346,730.60x = 110,872,899,751.02
  5. Step 5: Solve for x
    x = 110,872,899,751.02/346,730.60
  6. Step 6: Final answer
    x = 319,766.70

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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.