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Finding the Fourth Proportional to 228,681.80, 315,423.40 and 160,842.68

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Solution

The fourth proportional to 228,681.80, 315,423.40 and 160,842.68 is: 221,852.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,681.80 : 315,423.40 = 160,842.68 : x
  2. Step 2: Convert to fraction form
    228,681.80/315,423.40 = 160,842.68/x
  3. Step 3: Cross multiply
    228,681.80x = 315,423.40 × 160,842.68
  4. Step 4: Simplify right side
    228,681.80x = 50,733,544,990.71
  5. Step 5: Solve for x
    x = 50,733,544,990.71/228,681.80
  6. Step 6: Final answer
    x = 221,852.13

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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.