Home / 305,316.13-457,650.76-102,719.31

Finding the Fourth Proportional to 305,316.13, 457,650.76 and 102,719.31

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Solution

The fourth proportional to 305,316.13, 457,650.76 and 102,719.31 is: 153,970.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,316.13 : 457,650.76 = 102,719.31 : x
  2. Step 2: Convert to fraction form
    305,316.13/457,650.76 = 102,719.31/x
  3. Step 3: Cross multiply
    305,316.13x = 457,650.76 × 102,719.31
  4. Step 4: Simplify right side
    305,316.13x = 47,009,570,288.18
  5. Step 5: Solve for x
    x = 47,009,570,288.18/305,316.13
  6. Step 6: Final answer
    x = 153,970.15

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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.