Home / 328,289.10-492,433.65-223,313.10

Finding the Fourth Proportional to 328,289.10, 492,433.65 and 223,313.10

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Solution

The fourth proportional to 328,289.10, 492,433.65 and 223,313.10 is: 334,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,289.10 : 492,433.65 = 223,313.10 : x
  2. Step 2: Convert to fraction form
    328,289.10/492,433.65 = 223,313.10/x
  3. Step 3: Cross multiply
    328,289.10x = 492,433.65 × 223,313.10
  4. Step 4: Simplify right side
    328,289.10x = 109,966,884,925.82
  5. Step 5: Solve for x
    x = 109,966,884,925.82/328,289.10
  6. Step 6: Final answer
    x = 334,969.65

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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.