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Finding the Fourth Proportional to 360,009.60, 540,014.40 and 357,385.20

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Solution

The fourth proportional to 360,009.60, 540,014.40 and 357,385.20 is: 536,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,009.60 : 540,014.40 = 357,385.20 : x
  2. Step 2: Convert to fraction form
    360,009.60/540,014.40 = 357,385.20/x
  3. Step 3: Cross multiply
    360,009.60x = 540,014.40 × 357,385.20
  4. Step 4: Simplify right side
    360,009.60x = 192,993,154,346.88
  5. Step 5: Solve for x
    x = 192,993,154,346.88/360,009.60
  6. Step 6: Final answer
    x = 536,077.80

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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.