Home / 209,411.55-314,275.20-153,395.19

Finding the Fourth Proportional to 209,411.55, 314,275.20 and 153,395.19

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Solution

The fourth proportional to 209,411.55, 314,275.20 and 153,395.19 is: 230,208.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,411.55 : 314,275.20 = 153,395.19 : x
  2. Step 2: Convert to fraction form
    209,411.55/314,275.20 = 153,395.19/x
  3. Step 3: Cross multiply
    209,411.55x = 314,275.20 × 153,395.19
  4. Step 4: Simplify right side
    209,411.55x = 48,208,303,441.06
  5. Step 5: Solve for x
    x = 48,208,303,441.06/209,411.55
  6. Step 6: Final answer
    x = 230,208.43

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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.