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Finding the Fourth Proportional to 395,410.95, 593,510.09 and 218,001.51

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Solution

The fourth proportional to 395,410.95, 593,510.09 and 218,001.51 is: 327,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,410.95 : 593,510.09 = 218,001.51 : x
  2. Step 2: Convert to fraction form
    395,410.95/593,510.09 = 218,001.51/x
  3. Step 3: Cross multiply
    395,410.95x = 593,510.09 × 218,001.51
  4. Step 4: Simplify right side
    395,410.95x = 129,386,094,730.23
  5. Step 5: Solve for x
    x = 129,386,094,730.23/395,410.95
  6. Step 6: Final answer
    x = 327,219.30

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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.