Home / 278,457.09-384,271.14-151,132.73

Finding the Fourth Proportional to 278,457.09, 384,271.14 and 151,132.73

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Solution

The fourth proportional to 278,457.09, 384,271.14 and 151,132.73 is: 208,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,457.09 : 384,271.14 = 151,132.73 : x
  2. Step 2: Convert to fraction form
    278,457.09/384,271.14 = 151,132.73/x
  3. Step 3: Cross multiply
    278,457.09x = 384,271.14 × 151,132.73
  4. Step 4: Simplify right side
    278,457.09x = 58,075,944,527.06
  5. Step 5: Solve for x
    x = 58,075,944,527.06/278,457.09
  6. Step 6: Final answer
    x = 208,563.35

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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.