Home / 278,399.48-384,191.28-151,075.07

Finding the Fourth Proportional to 278,399.48, 384,191.28 and 151,075.07

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Solution

The fourth proportional to 278,399.48, 384,191.28 and 151,075.07 is: 208,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,399.48 : 384,191.28 = 151,075.07 : x
  2. Step 2: Convert to fraction form
    278,399.48/384,191.28 = 151,075.07/x
  3. Step 3: Cross multiply
    278,399.48x = 384,191.28 × 151,075.07
  4. Step 4: Simplify right side
    278,399.48x = 58,041,725,196.60
  5. Step 5: Solve for x
    x = 58,041,725,196.60/278,399.48
  6. Step 6: Final answer
    x = 208,483.60

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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.