Home / 370,259.40-555,389.10-212,503.80

Finding the Fourth Proportional to 370,259.40, 555,389.10 and 212,503.80

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Solution

The fourth proportional to 370,259.40, 555,389.10 and 212,503.80 is: 318,755.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,259.40 : 555,389.10 = 212,503.80 : x
  2. Step 2: Convert to fraction form
    370,259.40/555,389.10 = 212,503.80/x
  3. Step 3: Cross multiply
    370,259.40x = 555,389.10 × 212,503.80
  4. Step 4: Simplify right side
    370,259.40x = 118,022,294,228.58
  5. Step 5: Solve for x
    x = 118,022,294,228.58/370,259.40
  6. Step 6: Final answer
    x = 318,755.70

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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.