Home / 421,319.52-581,353.74-240,035.04

Finding the Fourth Proportional to 421,319.52, 581,353.74 and 240,035.04

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Solution

The fourth proportional to 421,319.52, 581,353.74 and 240,035.04 is: 331,210.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,319.52 : 581,353.74 = 240,035.04 : x
  2. Step 2: Convert to fraction form
    421,319.52/581,353.74 = 240,035.04/x
  3. Step 3: Cross multiply
    421,319.52x = 581,353.74 × 240,035.04
  4. Step 4: Simplify right side
    421,319.52x = 139,545,268,235.05
  5. Step 5: Solve for x
    x = 139,545,268,235.05/421,319.52
  6. Step 6: Final answer
    x = 331,210.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.