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Finding the Fourth Proportional to 355,703.33, 533,555.90 and 145,341.27

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Solution

The fourth proportional to 355,703.33, 533,555.90 and 145,341.27 is: 218,012.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,703.33 : 533,555.90 = 145,341.27 : x
  2. Step 2: Convert to fraction form
    355,703.33/533,555.90 = 145,341.27/x
  3. Step 3: Cross multiply
    355,703.33x = 533,555.90 × 145,341.27
  4. Step 4: Simplify right side
    355,703.33x = 77,547,692,121.99
  5. Step 5: Solve for x
    x = 77,547,692,121.99/355,703.33
  6. Step 6: Final answer
    x = 218,012.27

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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.