Home / 419,530.10-629,386.28-153,290.19

Finding the Fourth Proportional to 419,530.10, 629,386.28 and 153,290.19

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Solution

The fourth proportional to 419,530.10, 629,386.28 and 153,290.19 is: 229,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,530.10 : 629,386.28 = 153,290.19 : x
  2. Step 2: Convert to fraction form
    419,530.10/629,386.28 = 153,290.19/x
  3. Step 3: Cross multiply
    419,530.10x = 629,386.28 × 153,290.19
  4. Step 4: Simplify right side
    419,530.10x = 96,478,742,444.59
  5. Step 5: Solve for x
    x = 96,478,742,444.59/419,530.10
  6. Step 6: Final answer
    x = 229,968.58

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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.