Home / 346,475.20-519,712.80-212,922.40

Finding the Fourth Proportional to 346,475.20, 519,712.80 and 212,922.40

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Solution

The fourth proportional to 346,475.20, 519,712.80 and 212,922.40 is: 319,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,475.20 : 519,712.80 = 212,922.40 : x
  2. Step 2: Convert to fraction form
    346,475.20/519,712.80 = 212,922.40/x
  3. Step 3: Cross multiply
    346,475.20x = 519,712.80 × 212,922.40
  4. Step 4: Simplify right side
    346,475.20x = 110,658,496,686.72
  5. Step 5: Solve for x
    x = 110,658,496,686.72/346,475.20
  6. Step 6: Final answer
    x = 319,383.60

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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.