Home / 399,152.12-550,835.10-235,814

Finding the Fourth Proportional to 399,152.12, 550,835.10 and 235,814

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Solution

The fourth proportional to 399,152.12, 550,835.10 and 235,814 is: 325,426.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,152.12 : 550,835.10 = 235,814 : x
  2. Step 2: Convert to fraction form
    399,152.12/550,835.10 = 235,814/x
  3. Step 3: Cross multiply
    399,152.12x = 550,835.10 × 235,814
  4. Step 4: Simplify right side
    399,152.12x = 129,894,628,271.40
  5. Step 5: Solve for x
    x = 129,894,628,271.40/399,152.12
  6. Step 6: Final answer
    x = 325,426.38

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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.