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Finding the Fourth Proportional to 228,347.47, 315,014.37 and 147,800.88

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Solution

The fourth proportional to 228,347.47, 315,014.37 and 147,800.88 is: 203,897.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,347.47 : 315,014.37 = 147,800.88 : x
  2. Step 2: Convert to fraction form
    228,347.47/315,014.37 = 147,800.88/x
  3. Step 3: Cross multiply
    228,347.47x = 315,014.37 × 147,800.88
  4. Step 4: Simplify right side
    228,347.47x = 46,559,401,098.65
  5. Step 5: Solve for x
    x = 46,559,401,098.65/228,347.47
  6. Step 6: Final answer
    x = 203,897.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.