Home / 380,075.32-524,559.30-218,899

Finding the Fourth Proportional to 380,075.32, 524,559.30 and 218,899

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Solution

The fourth proportional to 380,075.32, 524,559.30 and 218,899 is: 302,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,075.32 : 524,559.30 = 218,899 : x
  2. Step 2: Convert to fraction form
    380,075.32/524,559.30 = 218,899/x
  3. Step 3: Cross multiply
    380,075.32x = 524,559.30 × 218,899
  4. Step 4: Simplify right side
    380,075.32x = 114,825,506,210.70
  5. Step 5: Solve for x
    x = 114,825,506,210.70/380,075.32
  6. Step 6: Final answer
    x = 302,112.50

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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.