Home / 209,742.93-314,492.90-143,263.40

Finding the Fourth Proportional to 209,742.93, 314,492.90 and 143,263.40

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Solution

The fourth proportional to 209,742.93, 314,492.90 and 143,263.40 is: 214,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,742.93 : 314,492.90 = 143,263.40 : x
  2. Step 2: Convert to fraction form
    209,742.93/314,492.90 = 143,263.40/x
  3. Step 3: Cross multiply
    209,742.93x = 314,492.90 × 143,263.40
  4. Step 4: Simplify right side
    209,742.93x = 45,055,319,841.08
  5. Step 5: Solve for x
    x = 45,055,319,841.08/209,742.93
  6. Step 6: Final answer
    x = 214,812.10

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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.