Home / 346,325.60-519,488.40-212,772.80

Finding the Fourth Proportional to 346,325.60, 519,488.40 and 212,772.80

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Solution

The fourth proportional to 346,325.60, 519,488.40 and 212,772.80 is: 319,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,325.60 : 519,488.40 = 212,772.80 : x
  2. Step 2: Convert to fraction form
    346,325.60/519,488.40 = 212,772.80/x
  3. Step 3: Cross multiply
    346,325.60x = 519,488.40 × 212,772.80
  4. Step 4: Simplify right side
    346,325.60x = 110,533,001,435.52
  5. Step 5: Solve for x
    x = 110,533,001,435.52/346,325.60
  6. Step 6: Final answer
    x = 319,159.20

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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.