Home / 313,386.12-470,131.02-155,619.72

Finding the Fourth Proportional to 313,386.12, 470,131.02 and 155,619.72

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Solution

The fourth proportional to 313,386.12, 470,131.02 and 155,619.72 is: 233,455.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,386.12 : 470,131.02 = 155,619.72 : x
  2. Step 2: Convert to fraction form
    313,386.12/470,131.02 = 155,619.72/x
  3. Step 3: Cross multiply
    313,386.12x = 470,131.02 × 155,619.72
  4. Step 4: Simplify right side
    313,386.12x = 73,161,657,695.71
  5. Step 5: Solve for x
    x = 73,161,657,695.71/313,386.12
  6. Step 6: Final answer
    x = 233,455.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.