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Finding the Fourth Proportional to 370,851.60, 556,277.40 and 315,739.20

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Solution

The fourth proportional to 370,851.60, 556,277.40 and 315,739.20 is: 473,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,851.60 : 556,277.40 = 315,739.20 : x
  2. Step 2: Convert to fraction form
    370,851.60/556,277.40 = 315,739.20/x
  3. Step 3: Cross multiply
    370,851.60x = 556,277.40 × 315,739.20
  4. Step 4: Simplify right side
    370,851.60x = 175,638,581,254.08
  5. Step 5: Solve for x
    x = 175,638,581,254.08/370,851.60
  6. Step 6: Final answer
    x = 473,608.80

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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.