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Finding the Fourth Proportional to 328,032.30, 492,048.45 and 300,038.70

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Solution

The fourth proportional to 328,032.30, 492,048.45 and 300,038.70 is: 450,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,032.30 : 492,048.45 = 300,038.70 : x
  2. Step 2: Convert to fraction form
    328,032.30/492,048.45 = 300,038.70/x
  3. Step 3: Cross multiply
    328,032.30x = 492,048.45 × 300,038.70
  4. Step 4: Simplify right side
    328,032.30x = 147,633,577,275.02
  5. Step 5: Solve for x
    x = 147,633,577,275.02/328,032.30
  6. Step 6: Final answer
    x = 450,058.05

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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.