Home / 278,457.15-384,271.25-151,132.76

Finding the Fourth Proportional to 278,457.15, 384,271.25 and 151,132.76

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Solution

The fourth proportional to 278,457.15, 384,271.25 and 151,132.76 is: 208,563.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,457.15 : 384,271.25 = 151,132.76 : x
  2. Step 2: Convert to fraction form
    278,457.15/384,271.25 = 151,132.76/x
  3. Step 3: Cross multiply
    278,457.15x = 384,271.25 × 151,132.76
  4. Step 4: Simplify right side
    278,457.15x = 58,075,974,601.15
  5. Step 5: Solve for x
    x = 58,075,974,601.15/278,457.15
  6. Step 6: Final answer
    x = 208,563.42

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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.