Home / 318,075.12-438,943.80-174,834

Finding the Fourth Proportional to 318,075.12, 438,943.80 and 174,834

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Solution

The fourth proportional to 318,075.12, 438,943.80 and 174,834 is: 241,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,075.12 : 438,943.80 = 174,834 : x
  2. Step 2: Convert to fraction form
    318,075.12/438,943.80 = 174,834/x
  3. Step 3: Cross multiply
    318,075.12x = 438,943.80 × 174,834
  4. Step 4: Simplify right side
    318,075.12x = 76,742,300,329.20
  5. Step 5: Solve for x
    x = 76,742,300,329.20/318,075.12
  6. Step 6: Final answer
    x = 241,270.99

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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.