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Finding the Fourth Proportional to 281,483.22, 388,446.71 and 152,421.67

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Solution

The fourth proportional to 281,483.22, 388,446.71 and 152,421.67 is: 210,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,483.22 : 388,446.71 = 152,421.67 : x
  2. Step 2: Convert to fraction form
    281,483.22/388,446.71 = 152,421.67/x
  3. Step 3: Cross multiply
    281,483.22x = 388,446.71 × 152,421.67
  4. Step 4: Simplify right side
    281,483.22x = 59,207,696,244.21
  5. Step 5: Solve for x
    x = 59,207,696,244.21/281,483.22
  6. Step 6: Final answer
    x = 210,341.83

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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.