Home / 369,981.64-553,369-217,816.10

Finding the Fourth Proportional to 369,981.64, 553,369 and 217,816.10

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Solution

The fourth proportional to 369,981.64, 553,369 and 217,816.10 is: 325,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,981.64 : 553,369 = 217,816.10 : x
  2. Step 2: Convert to fraction form
    369,981.64/553,369 = 217,816.10/x
  3. Step 3: Cross multiply
    369,981.64x = 553,369 × 217,816.10
  4. Step 4: Simplify right side
    369,981.64x = 120,532,677,440.90
  5. Step 5: Solve for x
    x = 120,532,677,440.90/369,981.64
  6. Step 6: Final answer
    x = 325,780.16

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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.