Home / 240,529.12-360,687.02-128,188.40

Finding the Fourth Proportional to 240,529.12, 360,687.02 and 128,188.40

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Solution

The fourth proportional to 240,529.12, 360,687.02 and 128,188.40 is: 192,225.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,529.12 : 360,687.02 = 128,188.40 : x
  2. Step 2: Convert to fraction form
    240,529.12/360,687.02 = 128,188.40/x
  3. Step 3: Cross multiply
    240,529.12x = 360,687.02 × 128,188.40
  4. Step 4: Simplify right side
    240,529.12x = 46,235,889,550.19
  5. Step 5: Solve for x
    x = 46,235,889,550.19/240,529.12
  6. Step 6: Final answer
    x = 192,225.75

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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.