Home / 330,509.81-456,243.08-223,225.16

Finding the Fourth Proportional to 330,509.81, 456,243.08 and 223,225.16

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Solution

The fourth proportional to 330,509.81, 456,243.08 and 223,225.16 is: 308,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,509.81 : 456,243.08 = 223,225.16 : x
  2. Step 2: Convert to fraction form
    330,509.81/456,243.08 = 223,225.16/x
  3. Step 3: Cross multiply
    330,509.81x = 456,243.08 × 223,225.16
  4. Step 4: Simplify right side
    330,509.81x = 101,844,931,134.55
  5. Step 5: Solve for x
    x = 101,844,931,134.55/330,509.81
  6. Step 6: Final answer
    x = 308,144.95

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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.