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Finding the Fourth Proportional to 404,587.80, 558,328.40 and 223,299.72

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Solution

The fourth proportional to 404,587.80, 558,328.40 and 223,299.72 is: 308,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,587.80 : 558,328.40 = 223,299.72 : x
  2. Step 2: Convert to fraction form
    404,587.80/558,328.40 = 223,299.72/x
  3. Step 3: Cross multiply
    404,587.80x = 558,328.40 × 223,299.72
  4. Step 4: Simplify right side
    404,587.80x = 124,674,574,271.55
  5. Step 5: Solve for x
    x = 124,674,574,271.55/404,587.80
  6. Step 6: Final answer
    x = 308,152.09

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1.5x scale

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.