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Finding the Fourth Proportional to 370,295.60, 555,443.40 and 341,427.20

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Solution

The fourth proportional to 370,295.60, 555,443.40 and 341,427.20 is: 512,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,295.60 : 555,443.40 = 341,427.20 : x
  2. Step 2: Convert to fraction form
    370,295.60/555,443.40 = 341,427.20/x
  3. Step 3: Cross multiply
    370,295.60x = 555,443.40 × 341,427.20
  4. Step 4: Simplify right side
    370,295.60x = 189,643,484,820.48
  5. Step 5: Solve for x
    x = 189,643,484,820.48/370,295.60
  6. Step 6: Final answer
    x = 512,140.80

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1.5x scale

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.