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Finding the Fourth Proportional to 360,140.55, 540,210.84 and 123,485.28

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Solution

The fourth proportional to 360,140.55, 540,210.84 and 123,485.28 is: 185,227.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,140.55 : 540,210.84 = 123,485.28 : x
  2. Step 2: Convert to fraction form
    360,140.55/540,210.84 = 123,485.28/x
  3. Step 3: Cross multiply
    360,140.55x = 540,210.84 × 123,485.28
  4. Step 4: Simplify right side
    360,140.55x = 66,708,084,347.57
  5. Step 5: Solve for x
    x = 66,708,084,347.57/360,140.55
  6. Step 6: Final answer
    x = 185,227.92

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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.