Home / 210,061.08-315,090-52,288.47

Finding the Fourth Proportional to 210,061.08, 315,090 and 52,288.47

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Solution

The fourth proportional to 210,061.08, 315,090 and 52,288.47 is: 78,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,061.08 : 315,090 = 52,288.47 : x
  2. Step 2: Convert to fraction form
    210,061.08/315,090 = 52,288.47/x
  3. Step 3: Cross multiply
    210,061.08x = 315,090 × 52,288.47
  4. Step 4: Simplify right side
    210,061.08x = 16,475,574,012.30
  5. Step 5: Solve for x
    x = 16,475,574,012.30/210,061.08
  6. Step 6: Final answer
    x = 78,432.30

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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.