Home / 434,433.60-651,650.40-209,966.40

Finding the Fourth Proportional to 434,433.60, 651,650.40 and 209,966.40

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Solution

The fourth proportional to 434,433.60, 651,650.40 and 209,966.40 is: 314,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,433.60 : 651,650.40 = 209,966.40 : x
  2. Step 2: Convert to fraction form
    434,433.60/651,650.40 = 209,966.40/x
  3. Step 3: Cross multiply
    434,433.60x = 651,650.40 × 209,966.40
  4. Step 4: Simplify right side
    434,433.60x = 136,824,688,546.56
  5. Step 5: Solve for x
    x = 136,824,688,546.56/434,433.60
  6. Step 6: Final answer
    x = 314,949.60

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1.5x scale

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.