Home / 346,784.80-519,788.40-147,071.20

Finding the Fourth Proportional to 346,784.80, 519,788.40 and 147,071.20

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Solution

The fourth proportional to 346,784.80, 519,788.40 and 147,071.20 is: 220,441.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,784.80 : 519,788.40 = 147,071.20 : x
  2. Step 2: Convert to fraction form
    346,784.80/519,788.40 = 147,071.20/x
  3. Step 3: Cross multiply
    346,784.80x = 519,788.40 × 147,071.20
  4. Step 4: Simplify right side
    346,784.80x = 76,445,903,734.08
  5. Step 5: Solve for x
    x = 76,445,903,734.08/346,784.80
  6. Step 6: Final answer
    x = 220,441.91

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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.