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Finding the Fourth Proportional to 281,482.22, 388,445.33 and 152,420.67

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Solution

The fourth proportional to 281,482.22, 388,445.33 and 152,420.67 is: 210,340.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,482.22 : 388,445.33 = 152,420.67 : x
  2. Step 2: Convert to fraction form
    281,482.22/388,445.33 = 152,420.67/x
  3. Step 3: Cross multiply
    281,482.22x = 388,445.33 × 152,420.67
  4. Step 4: Simplify right side
    281,482.22x = 59,207,097,838.02
  5. Step 5: Solve for x
    x = 59,207,097,838.02/281,482.22
  6. Step 6: Final answer
    x = 210,340.45

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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.