Home / 369,019.40-551,507.20-269,389.40

Finding the Fourth Proportional to 369,019.40, 551,507.20 and 269,389.40

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Solution

The fourth proportional to 369,019.40, 551,507.20 and 269,389.40 is: 402,608.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,019.40 : 551,507.20 = 269,389.40 : x
  2. Step 2: Convert to fraction form
    369,019.40/551,507.20 = 269,389.40/x
  3. Step 3: Cross multiply
    369,019.40x = 551,507.20 × 269,389.40
  4. Step 4: Simplify right side
    369,019.40x = 148,570,190,272.67
  5. Step 5: Solve for x
    x = 148,570,190,272.67/369,019.40
  6. Step 6: Final answer
    x = 402,608.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.