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Finding the Fourth Proportional to 505,417.61, 758,306.92 and 217,108.14

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Solution

The fourth proportional to 505,417.61, 758,306.92 and 217,108.14 is: 325,739.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,417.61 : 758,306.92 = 217,108.14 : x
  2. Step 2: Convert to fraction form
    505,417.61/758,306.92 = 217,108.14/x
  3. Step 3: Cross multiply
    505,417.61x = 758,306.92 × 217,108.14
  4. Step 4: Simplify right side
    505,417.61x = 164,634,602,378.06
  5. Step 5: Solve for x
    x = 164,634,602,378.06/505,417.61
  6. Step 6: Final answer
    x = 325,739.74

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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.