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Finding the Fourth Proportional to 358,330.80, 537,496.20 and 319,623.60

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Solution

The fourth proportional to 358,330.80, 537,496.20 and 319,623.60 is: 479,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,330.80 : 537,496.20 = 319,623.60 : x
  2. Step 2: Convert to fraction form
    358,330.80/537,496.20 = 319,623.60/x
  3. Step 3: Cross multiply
    358,330.80x = 537,496.20 × 319,623.60
  4. Step 4: Simplify right side
    358,330.80x = 171,796,470,430.32
  5. Step 5: Solve for x
    x = 171,796,470,430.32/358,330.80
  6. Step 6: Final answer
    x = 479,435.40

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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.