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Finding the Fourth Proportional to 145,598.94, 218,268.45 and 56,831.76

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Solution

The fourth proportional to 145,598.94, 218,268.45 and 56,831.76 is: 85,196.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,598.94 : 218,268.45 = 56,831.76 : x
  2. Step 2: Convert to fraction form
    145,598.94/218,268.45 = 56,831.76/x
  3. Step 3: Cross multiply
    145,598.94x = 218,268.45 × 56,831.76
  4. Step 4: Simplify right side
    145,598.94x = 12,404,580,165.97
  5. Step 5: Solve for x
    x = 12,404,580,165.97/145,598.94
  6. Step 6: Final answer
    x = 85,196.91

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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.