Home / 312,128.04-467,995.23-171,985.08

Finding the Fourth Proportional to 312,128.04, 467,995.23 and 171,985.08

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Solution

The fourth proportional to 312,128.04, 467,995.23 and 171,985.08 is: 257,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,128.04 : 467,995.23 = 171,985.08 : x
  2. Step 2: Convert to fraction form
    312,128.04/467,995.23 = 171,985.08/x
  3. Step 3: Cross multiply
    312,128.04x = 467,995.23 × 171,985.08
  4. Step 4: Simplify right side
    312,128.04x = 80,488,197,071.17
  5. Step 5: Solve for x
    x = 80,488,197,071.17/312,128.04
  6. Step 6: Final answer
    x = 257,869.17

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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.